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Thermal CFD simulation performance assessment

Thermal CFD simulation performance assessment

Heat flux measurement to validate CFD thermal simulations

The use of heat flux sensors

Did you know that heat flux can be measured? The FHF05 series heat flux sensors is used to verify simulated heat flux.

Heat transfer and thermal management of designs, devices and processes are often optimised using CFD simulation. The results are estimated temperatures and heat fluxes. Until now, only measurement of temperature is very common for validation purposes.

The Hukx FHF05 series heat flux sensors offers the first really practical solution to add heat flux to you measurements. For example: they can serve to measure heat flux boundary conditions as input for your thermal simulation (e.g. Ansys, COMSOL, OpenFoam, SimScale, Abaqus, etc.) or they can be used as validation of calculations.

Thermal CFD simulation of a battery pack showing heat distribution profiles used for validating thermal management models with FHF05 heat flux sensors.

Figure 1 Validating battery thermal management simulations with FHF05 heat flux sensors.

Assets of the newest innovative FHF05 series heat flux sensors

  • easy to use and instant results
  • affordable
  • accurate, no matter what material they are mounted on
  • robust
  • flexible
  • thin and fast; they have low thermal resistance
  • temperature range up to 120 °C at continuous use (150 °C short exposure)

Heat flux sensors measure a temperature difference across a thin layer of material. They typically employ a thermopile, which is manufactured by creating an alternating pattern of two dissimilar conductors, generally metal alloys. The output is a millivolt signal proportional to the local heat flux.

Technical diagram of a thermopile sensor showing the alternating pattern of two dissimilar metal alloys used to generate a millivolt heat flux signal.
Figure 2 The working principle: a thermopile measuring temperature difference across a thin foil.

Hukx is the market leader in heat flux measurement, worldwide. We offer a wide range of sensors for measuring heat flux in many applications. Cannot find what you are looking for, or contemplating using a dedicated instrument for a specific application, please contact Hukx. We like having a good technical conversation.

FHF05 series heat flux sensors, with 5 different models, is designed for general-purpose heat flux measurement. Click on the product below to discover all its specifications.

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